Sep 2015 – Jul 2018 · 2 yrs 10 mos · Bengaluru, Karnataka, India

• Worked on multiple modules as part of building and maintaining qplum - a portfolio management platform. With full ownership of qplum backend systems, contributing heavily to backend and data- pipelines of qplum.
• Projects
• Asynchronous Broker Interaction Framework - Built capability in qplum to interact with different brokers. The framework addresses the following complications - varied interaction methods of different brokers, asynchronous nature of communications, ensuring stability of the system even in case of different failures.
• Account Management Module - Built an unified account management platform on top of the broker interaction framework which integrates with qplum web frontend and qplum mobile apps through RESTful APIs.
• Caching framework in Strategy Simulation - Built a robust version-aware caching framework inside our strategy simulation module to reduce simulation time by reducing recomputation
• Transactional sidekiq - Sidekiq is a ruby library, which is used heavily for background job processing. We have built internal wrapper on top of it to overcome the problem of distributed transactions.
• Market-data processing pipeline - Developing and maintaining qplum's market-data processing pipeline built using Apache Airflow.
• Data Services - Currently working on building distributed data-services following RPC paradigm on top of RPyC framework. The aim is to decouple independent modules of our strategy-development and trading systems, while exposing the interfaces in a cohesive manner.
• Technology Stack
• Programming Languages - Ruby, Python
• Web development frameworks - Rails, Django
• Data Stores - Postgresql, Mysql, Redis, Cassandra
• Queues - RabbitMQ, Apache Kafka
• Job Processing Tools - Sidekiq, Celery, Apache Airflow
• Deployment Tools - Docker, Chef, Terraform, Packer, GoCD, Jenkins
• AWS - EC2, RDS, ElastiCache, Cloudwatch, S3, Route53, Glacier etc

Jan 2014 – Aug 2015 · 1 yr 7 mos · Bengaluru, Karnataka, India

• Responsible for Designing, Development and Maintenance of Warehouse Management Platform which was built up from scratch and still going through constant changes, enhancements and new feature developments fulfilling day-to-day and upcoming business needs.
• Responsibilities:
• Feature Development – Working closely with Product Managers to design, develop and deliver generic tech solutions for business problems regarding Warehousing.
• Performance Optimization – Keeping the system under constant observation and enhance it towards better performance, better solutioning and more effectiveness.
• Production Issues – Working closely with Operations fulfilling their day-to-day needs and issues with the system.
• Projects
• Built a rubygem, Clockwork, which served as a core platform for task configuration, dependency and tracking inside warehouse platform.
• Co-owned an internally built rubygem, Morsel, which was used to archive warehouse platform databases while keeping the model associations intact.
• Implemented a Redis-based solution for item locking bottleneck during bulk reservations, eg. exclusive product launch time.
• Fully owned, designed, delivered and supported a lot of critical flows inside warehouse, like item serialization, stock take, tote-based picking etc.
• Technology Stack – Ruby, Ruby on Rails, Padrino, Active-Record, Rest-Client, Mysql, Apache, Nginx, Passenger, Unicorn, Rack, Swift MQ, Puppet, GO (CI), Jenkins (CI), Git etc.

Jul 2012 – Dec 2013 · 1 yr 5 mos · Bengaluru, Karnataka, India

Jul 2011 – Apr 2012 · 9 mos · Kharagpur I, India

• Worked as Teaching Assistant (part of M.Tech. curriculum) for the following courses:
• Discreet Mathematics (5 months)
• Programming and Data Structures Lab (5 months)
• Responsibilities were to take tutorials, directly help students in solving problems, checking answer scripts etc.

Jul 2009 – Jul 2009 · 0 mo · Greater Kolkata Area

• Developed an application software that calculates the raw-mix percentage of cement at its optimum level based on given parameters, which is a very important and fundamental requirement of cement industry. This project was carried out as a requirement of Cement Cell, DCPL.
• Programming Language used: JAVA